GCF of 78 and 86
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Want to know what the GCF of 78 and 86 is? We will not only show you the answer but will also teach you two different methods through which you can easily find the greatest common factor of 78 and 86. Otherwise, you can utilise our handy GCF Calculator tool to quickly get the result.
Detailed Solution to Calculate GCF of 78, 86 using Factoring
In this method, we have to list the factors of 78 and 86 separately and then select the highest number that appears in both lists. This will be your greatest common factor.
The factors of 78 are 1 , 2 , 3 , 6 , 13 , 26 , 39 , and 78
The factors of 86 are 1 , 2 , 43 , and 86
As you can see from the aforementioned lists, the largest number that is present in both lists is 2. Therefore, we can determine that the GCF of 78 and 86 is 2.
Greatest Common Factor of 78, 86 with Prime Factorization
This is prime factorization. Essentially, you have to divide both 78 and 86 with the same prime number and keep going until the numbers can no longer be divided by the same prime number. At that point, you must stop the process and multiply the prime numbers on the left side. The result will be the greatest common factor.
| 2 | 78, 86 |
| 39, 43 |
From the picture, we can see that 39 and 43 cannot be divided by the same number again. So, all we have to do is now multiply the prime numbers on the left.
2 = 2
Hence, the GCF of 78 and 86 is 2.
Find the GCF of 78 and 86
Given numbers are 78 and 86
To find the greatest common factor of 78 and 86
The GCF of 78 and 86 is 2.
FAQs on GCF of 78 and 86
1. What are the LCM and GCF of 78 and 86?
The LCM and GCF of 78 and 86 are 3354 and 2.
2. How to get the GCF of 78 and 86?
The GCF of 78 and 86 can be calculated by finding the factors of both numbers and identifying the highest common factor in both.
3. What are the Methods to Find GCF of 78, 86?
The 2 different methods to find the greatest common factor of 78 and 86 are prime factorization and factors of both numbers.